Improvement in heating apparatus



www! wmv-...www rw- UNITED STATES PATENT OFFICE.

WILLIAM c. BAKER, on NEw YORK, N. Y.

IMPROVEMENT IN HEATING APPARATUS.

Specication forming part of Letters Patent No. 144,650, dated November18, 1873; application filed Y July 3, 1873.

To all whom it may concern:

Be it known that I, WILLIAM C. BAKER, of the city and State of New York,have invented an Improvement in Hot-Water Heating Apparatus, of whichthe following is a specification:

Water is often employed for heating purposes, the same circulating froma boiler and furnace through pipes.

An example of this character may be seen in the patent No. 75,345,granted to me, and in which the heating apparatus is especially intendedfor railway-cars. In apparatus of this general character it is oftenimportant to provide for regulating the heatingcapacity in particularlocations without disturbing the action of the hot-water-circulatingapparatus in other locations- Heretoforc ithas generally been considerednecessary. to have the entire circulation pass throughjall the pipeswithout interruption. I have discovered that the'ci-rculating' hotwaterdcanpbe subdivided and directed through a radiator, and back Vtolthe primary circulating-pipe, without interfering with the generalcirculation.

My invention consists in a means for dividing the circulating hot water,and directing it through a radiator and returning it to the primarycirculation-tube.

In the drawing, Figure l is an elevation, partially in section, of theradiator and its connections, and Fig. 2 is a crosssection of theprimary circulating-tube and the return-pipe from the radiator.

The pipe or tube a represents a portion of the circulation coil ortubes, extending from the boiler and returning to the same, as usual. `bb represent the pipes of a coil or radiator, of any usual construction;and I remark that a fiat chamber may take the place of the coil,

` or any other suitable form of radiator may be employed. lThe risingpipe c connects with the upper part of the radiator, and the returnpiped connects with the lower part of the radiator. The cocks e and f serveto close the pipes c d, so as to allow the radiator to be removed orrepaired but in use only one of the cocks is required to stop thecirculation of water through the radiator, or to allow a regulatedquantity` to pass. The globe or vesseli allows air to y accumulatewithout checking the circulation,

and the air-cock l is to be opened from time to time. I remark that iniilling the radiator it is preferable to keep the cock e closed untilthe main portion of the radiator is filled, the air blowing out at thecock l, and then to open the cock e, which operation finally insures theentire lling ofthe radiator and pipes without risk of confining thereinany atmospheric air.

Upon reference to the drawing, it will be seen that the pipe c startsfrom the upper part of the primary circulating-pipe a, and the pipe dpasses down into the pipe a, so as to obtainas much difference aspossible `in `the relative levels between the inlet'and outlet pipes ofthe radiator. The circulating water being hottest at the upper part ofthe,` circulating pipe a, as the water moves along through said pipe cthe heated por tion ascends through the tube c, and descends as itbecomes cooler, and circulates through b, and back to the pipe a,passing out at the lowest end through the piped` The circulation in thepipe a is not materially impeded by the pipe d; but there might be anenlargement or connection for bringing inthe pipe cl low down.

Two or more coils or radiators may be placed side by side, and the waterwill subdivide and pass into the respective radiators.

I claim as my invention- A radiator for circulating hot water connectedto the primary circulating-pipe by two independent pipes, one at theupper part of such primary circulating-pipe, and the other at a lowerlevel, in combination with a cock to regulate or stop the secondarycirculation in the radiator, substantially as set forth. y

Signed by me this 27th day of June, A. D. 1873.

VVitnesscsz. W. C. BAKER.

GEO. T. PINGKNEY, GHAs. H. SMITH.

